"Prolotherapy: Background History, Mechanism of Action, and Current Evidence," by Yogesh Taheem, MD, Anesthesiology Resident, Rush University Medical Center; and Tolga Suvar, MD, Assistant Professor, Department of Anesthesiology, Rush Medical College; both in Chicago, Illinois. From ASRA Pain Medicine News, August 2022. See original article at www.asra.com/asra-news for figures and references. This material is copyrighted.